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System and method for packet delivery backtracking

a packet backtracking and packet technology, applied in the field of system and method for packet backtracking, can solve problems such as undeliverable flagging, and achieve the effect of maximizing the chance of transmission success

Active Publication Date: 2013-05-23
RAJANT CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The patent describes a method for delivering packets in highly mobile and volatile networks. The invention splits data into small packets, each containing information about its source, destination, and type. This information is included in a protocol header. The goal is to maximize the chance of successful transmission in these networks. The invention improves existing methods of mesh network packet routing.

Problems solved by technology

A packet is normally considered deliverable, but once the normal delivery mechanisms fail, it will be flagged as undeliverable.

Method used

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  • System and method for packet delivery backtracking
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Examples

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Embodiment Construction

[0024]A preferred embodiment of the present invention will be set forth in detail with reference to the drawings, in which like reference numerals refer to like elements or steps throughout.

[0025]FIG. 1 illustrates the top level of the Bridge Handler 100. A packet enters this handler 102 and is then checked for encapsulation 104. If the packet is not encapsulated 106, its source is checked in the bridge table 108. If the source is not known 110, an entry for it is created in the bridge table 112, a random sequence number is added 113, default settings are applied to that table entry 114, and the entry is timestamped 116 and delivered to its destination 202.

[0026]If the source is already in the table 108, 118, it is checked for whether it was previously known 120. If it is known 122, the Undiscovered flag is cleared 124, sequence number applied 113, flags initialized 114, timestamped 116, and the packet is delivered 202. If the source was known, a check is done 128 for whether it is ...

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PUM

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Abstract

Traditional computer networks have been designed with the need for highly reliable packet delivery. This is largely handled by a centrally managed simple send-acknowledge protocol. In a highly dynamic mesh network, these methods are inadequate to ensure the most reliable packet delivery. This invention uses the natural redundancy of routes in a mesh and other techniques to increase the reliability of a network, even as the paths to any given node are dynamic in nature.

Description

REFERENCE TO RELATED APPLICATION[0001]The present application is a continuation-in-part of U.S. patent application Ser. No. 11 / 435,287, filed May 17, 2006, currently pending, which claims the benefit of U.S. Provisional Patent Application No. 61 / 681,464, filed May 15, 2005. The disclosures of the above applications are hereby incorporated by reference in their entireties into the present application.FIELD OF THE INVENTION[0002]The present invention concerns tactical and other highly mobile communications networks. Such networks are distinguished by their ability to self-organize and heal connections, as radio nodes enter and leave each others' direct communications ranges with minimal impact to the performance of other nodes on the network.DISCUSSION OF THE KNOWN ART[0003]A wireless communication network typically includes a wireless client device or station (STA) that communicates with one or more access points (APs) that are connected to a communications infrastructure. The commun...

Claims

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Application Information

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IPC IPC(8): H04W40/02
CPCH04W40/02H04L61/2015H04L61/25H04L29/12283H04L29/1233H04W28/04H04W28/18H04W40/26H04W40/38H04W72/00H04W76/04H04W80/00H04W84/18H04W88/04H04L45/36H04L45/66H04L45/48H04L61/2061H04W76/20H04L61/5061H04L61/5014H04B1/00H04L2001/0097
Inventor HELLHAKE, PAUL R.LAMB, MARTIN A.PARKS, JOSEPH E.ACKER, DAVID
Owner RAJANT CORP
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